Both rings in this Two-Tone 18K Gold Ring Guard Set are a delicate 1 millimeter wide and might be from Hidalgo but they’re not hallmarked! The center of the rings is white rhodium over yellow gold to make it look like white gold, but they are all 18K yellow gold. In very good condition, they have scratches on the metal. Keep a wowzer ring from slipping off your finger by sandwiching it between these two guard rings, or wear them stacked or separately on their own!